Foot warmer



FIG. 1 is a perspective view showing my new design for a foot warmer,

FIG. 2 is a front elevational view of my new design for a foot warmer,

FIG. 3 is a rear elevational view of my new design for a foot warmer,

FIG. 4 is a right elevational view of my new design for a foot warmer,

FIG. 5 is a left elevational view of my new design for a foot warmer,

FIG. 6 is a top plan view of my new design for a foot warmer; and,

FIG. 7 is a bottom plan view of my new design for a foot warmer. 

The ornamental design for a foot warmer, as shown and described. 